Richard V. Hatfield, 59, a naval architect, transportation economist and management consultant and former vice president of Booz-Allen Applied Research Inc. in Bethesda, died of cancer July 24 at his summer home in Sarasota, Fla.

He also maintained a home in Wolfeboro, N.H.

A former resident of Bethesda, Mr. Hatfield lived in this area from 1962, when he joined the research company's operations office in Bethesda, until 1977, when he became an independent consultant. He was named a vice president of Booz-Allen in 1964.

Earlier, he worked for the company's international division in Italy and Iran and for its management consulting firms elsewhere in the United States. The company now is known as Booz-Allen & Hamilton Inc.

Mr. Hatfield lived in Chicago and operated a consulting firm in that area before moving to New Hampshire about three years ago.

He was born in Lynn, Mass., and graduated from the Massachusetts Institute of Technology. He was a lieutenant in the Navy during World War II.

Survivors include his wife, Natalie, of Wolfeboro and Sarasota; a daughter, Susan Cass of Cumberland Gap, Tenn.; two sons, Steven, of Franklin, N.Y. and Roger, of St. Croix, V.I., and six grandchildren.

The family suggests that expressions of sympathy be in the form of contributions in his name to the American Cancer Society, or to a charity of one's choice.